Error : Undefined variable "matlab" or class "matlab.hw​mgr.intern​al.hwconne​ction.USBD​eviceEnume​rator" - Standalone application / ArduinoIO

Hi,

I'm trying to compile a very simple standalone app with Matlab2017a that connect to an Arduino using the Matlab ArduinoIO support package. The code is the following:

a = arduino

In Matlab it works perfectly and connect to my Arduino UNO. When compiled I've got the following error message:

Undefined variable "matlab" or class "matlab.hwmgr.internal.hwconnection".

Is the Matlab compiler working with ArduinoIO? Did I missed a file inclusion?

Thank you,

Julien

Answer 1

[Julien Buteau]

For the record, this was answered by Matlab Support Team here since.

[rodolfo Baldivieso Monasterios]

That link is broken

[ksol]

I have the same problem.

Can you tell me the answer?

Answer 2

[Julien Buteau]

What's not working in the compiler is:

• the COM port search function
• the automatic Arduino board type detection

So in order to compile a functional software so have to specifiy the com port and the board type.

For example:

arduinoConnection = arduino('COM1', 'Uno');

[ksol]

With the version 2019b you can create a standalone application:

Here you can find some informations:

https://de.mathworks.com/help/releases/R2019b/supportpkg/arduinoio/ug/create-standalone-applications-for-arduino-hardware-from-matlab-programs.html#responsive_offcanvas